Page Comparison

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• Modify hbase-env.sh on all HBase nodes to include the HBase coprocessor in the classpath:

  Code Block

  export HBASE_CLASSPATH="$HBASE_CLASSPATH:/<cdap-home>/<hbase-compat-version>/coprocessor/*" # <cdap-home> will vary depending on your distribution and installation # For Cloudera Manager/CDH: it is "${PARCEL_ROOT}/CDAP" where ${PARCEL_ROOT} is your configured "Parcel Directory" # Ambari/HDP, MapR, packages: it is "/opt/cdap" # # <hbase-compat-version> is the HBase package compatible with the distribution # For example, if you are on a Cloudera Manager cluster with CDH 5.5.x: export HBASE_CLASSPATH="$HBASE_CLASSPATH:/opt/cloudera/parcels/CDAP/hbase-compat-1.0-cdh5.5.0/coprocessor/*"

• Restart HBase master and regionservers.

• Enable replication from master to slave:

  Code Block
  master_hbase_shell> add_peer '[slave-name]', '[slave-zookeeper-quorum]:/[slave-zk-node]' # For example: master_hbase_shell> add_peer 'slave', 'slave.example.com:2181:/hbase'

• Enable replication from slave to master:

  Code Block
  slave_hbase_shell> add_peer '[master-name]', '[master-zookeeper-quorum]:/[master-zk-node]' # For example: slave_hbase_shell> add_peer 'master', 'master.example.com:2181:/hbase'

• Confirm that HBase replication is working:

  Code Block

  master_hbase_shell> create 'repltest', 'f' slave_hbase_shell> create 'repltest', 'f' master_hbase_shell> enable_table_replication 'repltest' slave_hbase_shell> alter 'repltest', { 'NAME' => 'f', 'REPLICATION_SCOPE' => 1 } master_hbase_shell> put 'repltest', 'masterrow', 'f:v1', 'v1' slave_hbase_shell> put 'repltest', 'slaverow', 'f:v1', 'v1' master_hbase_shell> scan 'repltest' slave_hbase_shell> scan 'repltest'

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